Med express online pharmacy adults and children over 14 years old are administered intravenously (slowly drip) 50-100 mg (1-2 ampoules), up to 400 mg (0.4 g) per day. In the same dose is administered intramuscularly or subcutaneously. Inside appoint (with a small amount of liquid) in capsules 50 mg to 8 capsules (0.4 g) per day or as drops – 20 drops each (contain 50 mg of tramadol) to receive in a small amount of water up to 8 times per day. Usually, the recommended dose is 50 mg. It is taken approximately 0,5-1 hour before sexual activity. Do not take Viagra more than once a day. A high-fat meal may delay the time of the effect of this drug. Try not to eat grapefruit or drink grapefruit juice while you are being treated with Sildenafil Citrate. Super P-Force cannot be used in patients with allergy to the medication and its components and also in individuals treated with nitrates (such as nitroglycerin). This combination can cause very low blood pressure potentially dangerous to result in a stroke, heart attack, or death. Do not take this medication if you are under 18 y.o.